The famous Autunite that is 48.27 % pure uranium with calcium crystallized into a radioactive and UV reactive natural masterpiece. This is what got us kicked off of Etsy and drove us to create our own platform. While it is still for sale on Etsy for hundreds or even thousands of dollars... get the real deal here at our shop for a reasonable price for a beautiful piece. The geiger counter will go crazy so we reccomend getting one (not included) we do however supply a small 365 nm UV light to make it glow green and also send a small display so you can safely show of your piece. Any questions please ask and we hope any mineral collector out there who doesn't own any of this special mineral will consider collecting a piece of our autunite. It comes from Guangdong China somewhere in an exotic location and travels overseas for an exorbitant fee. Very rare and one of a kind mineral for your beginner to advanced rock collector.